Rehash: meaning, definitions and examples
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rehash
[ riːˈhæʃ ]
computing term
To rehash means to process or reorganize data using a different hashing function. In computing, it often refers to changing the method used to compute hash values for data in a data structure like a hash table. This action is typically performed when there is a need to reduce collisions or improve performance in terms of accessing data. Rehashing can also be applied to various contexts outside of computing, indicating a reevaluation or reworking of ideas.
Synonyms
Examples of usage
- We need to rehash the algorithm to improve its efficiency.
- After encountering too many collisions, the system was programmed to rehash the data.
- The developer decided to rehash the code for better optimization.
Translations
Translations of the word "rehash" in other languages:
🇵🇹 rehash
- reformular
- reavaliar
🇮🇳 रीहैश
- पुनर्विचार
- पुनर्गठन
🇩🇪 rehash
- überarbeiten
- neu bewerten
🇮🇩 rehash
- meninjau kembali
- merombak
🇺🇦 переробка
- переосмислення
- оновлення
🇵🇱 rehash
- przemyślenie
- przeorganizowanie
🇯🇵 リハッシュ
- 再評価
- 再構成
🇫🇷 rehash
- réévaluation
- reformulation
🇪🇸 rehash
- revaluar
- reformular
🇹🇷 rehash
- yeniden değerlendirme
- yeniden yapılandırma
🇰🇷 리해시
- 재평가
- 재구성
🇸🇦 إعادة تجميع
- إعادة تقييم
- إعادة صياغة
🇨🇿 rehash
- zhodnocení
- přepracování
🇸🇰 rehash
- prehodnotenie
- reorganizácia
🇨🇳 重构
- 重新评估
- 重新整理
🇸🇮 rehash
- ponovno ovrednotenje
- prenova
🇮🇸 rehash
- endurmat
- endurskoðun
🇰🇿 rehash
- қайта қарау
- қайта құру
🇬🇪 rehash
- ხელახალი შეფასება
- გადახედვა
🇦🇿 rehash
- yenidən qiymətləndirmək
- yenidən təşkil etmək
🇲🇽 rehash
- revaluar
- reformular
Etymology
The term 'rehash' originated in the late 20th century within computer science, closely associated with hashing, which is a fundamental concept in computer programming and data management. The word 'hash' is derived from the act of chopping or mixing together, and in a computing context, it refers specifically to a method of distributing data across various locations based on a hash function. As the technology and its applications evolved, particularly in data structures, the idea of 'rehashing' emerged as a solution for improving the efficiency of data retrieval and storage. The prefix 're-' denotes a repeat or revisitation of the hashing process, emphasizing the corrective or optimizing intention behind the action. Thus, 'rehash' encapsulates both its computing roots and its more general application in revisiting and refreshing ideas or methodologies in numerous fields.